/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.streaming.runtime.operators.windowing;
import org.apache.flink.streaming.api.windowing.windows.TimeWindow;
import org.apache.flink.streaming.api.windowing.windows.Window;
import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.Matchers;
import org.hamcrest.TypeSafeMatcher;
/**
* Matchers that are useful for working with {@link StreamRecord StreamRecords}. This ...
*/
public class StreamRecordMatchers {
public static <T> Matcher<StreamRecord<? extends T>> isStreamRecord(
T value) {
return isStreamRecord(Matchers.equalTo(value));
}
public static <T> Matcher<StreamRecord<? extends T>> isStreamRecord(
T value,
long timestamp) {
return isStreamRecord(Matchers.equalTo(value), Matchers.equalTo(timestamp));
}
public static <T> Matcher<StreamRecord<? extends T>> isStreamRecord(
Matcher<? super T> valueMatcher) {
return new StreamRecordMatcher<>(valueMatcher, Matchers.anything());
}
public static <T> Matcher<StreamRecord<? extends T>> isStreamRecord(
Matcher<? super T> valueMatcher, Matcher<? super Long> timestampMatcher) {
return new StreamRecordMatcher<>(valueMatcher, timestampMatcher);
}
public static Matcher<TimeWindow> timeWindow(long start, long end) {
return Matchers.equalTo(new TimeWindow(start, end));
}
@SuppressWarnings({"unchecked", "rawtypes"})
@SafeVarargs
public static <W extends Window> Matcher<Iterable<W>> ofWindows(Matcher<W>... windows) {
return (Matcher) Matchers.containsInAnyOrder(windows);
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
T value) {
return isWindowedValue(Matchers.equalTo(value));
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
T value,
long timestamp) {
return isWindowedValue(Matchers.equalTo(value), Matchers.equalTo(timestamp));
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
T value,
long timestamp,
W window) {
return isWindowedValue(Matchers.equalTo(value), Matchers.equalTo(timestamp), Matchers.equalTo(window));
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
Matcher<? super T> valueMatcher, long timestamp) {
return new WindowedValueMatcher<>(valueMatcher, Matchers.equalTo(timestamp), Matchers.anything());
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
Matcher<? super T> valueMatcher, long timestamp, W window) {
return new WindowedValueMatcher<>(valueMatcher, Matchers.equalTo(timestamp), Matchers.equalTo(window));
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
Matcher<? super T> valueMatcher) {
return new WindowedValueMatcher<>(valueMatcher, Matchers.anything(), Matchers.anything());
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
Matcher<? super T> valueMatcher, Matcher<? super Long> timestampMatcher) {
return new WindowedValueMatcher<>(valueMatcher, timestampMatcher, Matchers.anything());
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
Matcher<? super T> valueMatcher, long timestamp, Matcher<? super W> windowMatcher) {
return new WindowedValueMatcher<>(valueMatcher, Matchers.equalTo(timestamp), windowMatcher);
}
public static <T, W extends Window> Matcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> isWindowedValue(
Matcher<? super T> valueMatcher, Matcher<? super Long> timestampMatcher, Matcher<? super W> windowMatcher) {
return new WindowedValueMatcher<>(valueMatcher, timestampMatcher, windowMatcher);
}
private StreamRecordMatchers() {}
private static class StreamRecordMatcher<T> extends TypeSafeMatcher<StreamRecord<? extends T>> {
private Matcher<? super T> valueMatcher;
private Matcher<? super Long> timestampMatcher;
private StreamRecordMatcher(
Matcher<? super T> valueMatcher,
Matcher<? super Long> timestampMatcher) {
this.valueMatcher = valueMatcher;
this.timestampMatcher = timestampMatcher;
}
@Override
public void describeTo(Description description) {
description
.appendText("a StreamRecordValue(").appendValue(valueMatcher)
.appendText(", ").appendValue(timestampMatcher)
.appendText(")");
}
@Override
protected boolean matchesSafely(StreamRecord<? extends T> streamRecord) {
return valueMatcher.matches(streamRecord.getValue())
&& timestampMatcher.matches(streamRecord.getTimestamp());
}
}
private static class WindowedValueMatcher<T, W extends Window> extends TypeSafeMatcher<StreamRecord<? extends WindowedValue<? extends T, ? extends W>>> {
private Matcher<? super T> valueMatcher;
private Matcher<? super Long> timestampMatcher;
private Matcher<? super W> windowMatcher;
private WindowedValueMatcher(
Matcher<? super T> valueMatcher,
Matcher<? super Long> timestampMatcher,
Matcher<? super W> windowMatcher) {
this.valueMatcher = valueMatcher;
this.timestampMatcher = timestampMatcher;
this.windowMatcher = windowMatcher;
}
@Override
public void describeTo(Description description) {
description
.appendText("a WindowedValue(").appendValue(valueMatcher)
.appendText(", ").appendValue(timestampMatcher)
.appendText(", ").appendValue(timestampMatcher)
.appendText(")");
}
@Override
protected boolean matchesSafely(StreamRecord<? extends WindowedValue<? extends T, ? extends W>> streamRecord) {
return valueMatcher.matches(streamRecord.getValue().value())
&& timestampMatcher.matches(streamRecord.getTimestamp())
&& windowMatcher.matches(streamRecord.getValue().window());
}
}
}